function checkAnswer(qNum) {
	formObj = document.glfquiz;
	multiplier = 0;
	obj = formObj.elements[qNum];
	answered = false;
	for (k=0; k < obj.length; k++) {
		if (obj[k].checked) answered = true;
	}
	if (!answered) {
		alert('Answer question before proceeding');
		return false;
	}
	document.glfquiz.submit();
}